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[目的/意义] 文章的被引频次一直是量化评价一篇论文学术影响力的重要指标。但在不同学科不同年份发表的论文会因该领域研究论文数、引用滞后等因素呈现较大的差异。因此在对比两篇论文时，难以简单依据被引频次的绝对值来评判论文影响力大小。为此，本文设计了一个新的可计算数学模型，使得每篇论文可以有一个标准化的指标，以便对不同学科不同年份发表的论文的学术影响力进行直接比较。[方法/过程] 通过分析2006、2017两年中国科技类学术期刊各学科论文的被引频次分布规律，采用同学科论文被引频次的分布形态最接近对数正态分布的先设条件，提出一种被引频次标准化指数——Paper Citation Standardized Index （简称PCSI，中文"论文引证标准化指数"）。最后以中国科协优秀科技期刊论文评选结果为例，将它们与论文所属学科全部论文进行实证对比研究。[结果/结论] 结果证明，PCSI对不同年份、不同学科论文的被引频次进行了标准化，反映了被引频次的线性差距，是一种较为理想的单篇论文学术影响力比较评价工具。 相似文献
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[目的/意义] 文章的被引频次一直是量化评价一篇论文学术影响力的重要指标。但在不同学科不同年份发表的论文会因该领域研究论文数、引用滞后等因素呈现较大的差异。因此在对比两篇论文时，难以简单依据被引频次的绝对值来评判论文影响力大小。为此，本文设计了一个新的可计算数学模型，使得每篇论文可以有一个标准化的指标，以便对不同学科不同年份发表的论文的学术影响力进行直接比较。[方法/过程] 通过分析2006、2017两年中国科技类学术期刊各学科论文的被引频次分布规律，采用同学科论文被引频次的分布形态最接近对数正态分布的先设条件，提出一种被引频次标准化指数——Paper Citation Standardized Index （简称PCSI，中文"论文引证标准化指数"）。最后以中国科协优秀科技期刊论文评选结果为例，将它们与论文所属学科全部论文进行实证对比研究。[结果/结论] 结果证明，PCSI对不同年份、不同学科论文的被引频次进行了标准化，反映了被引频次的线性差距，是一种较为理想的单篇论文学术影响力比较评价工具。 相似文献
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借助《中文社会科学引文索引》2000—2007年度民族学论文的引文数据,对民族学领域论文引用的图书所属出版社进行归并、分类与统计,得到对民族学研究最具影响力的百家大陆出版社,对中国港澳台地区出版社及国外出版社的影响力也做了探讨。 相似文献
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高影响力论文是名牌医学期刊的特征 总被引：2，自引：3，他引：2
在某一学术领域内,某一篇论文的被引用次数在某种程度上可以衡量该论文在某一时期内的学术影响.<中国高影响力医学期刊论文计量报告>一书详细而科学、客观地揭示了中国高影响力医学论文的被引频次和专业分类.本文在此基础上进一步分析被引80次以上的299篇中国高影响力医学论文的来源期刊的情况,认为高影响力论文是名牌医学期刊的特征. 相似文献
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高被引论文是科技期刊学术影响力建立的基石,反映了期刊聚焦前沿热点,受读者关注度高,学术影响力大。本研究分析了综合性农业科学类中文核心期刊发表的高被引论文的期刊分布、发表年限和次数分布、作者所属机构和专业学科领域特征,结果表明：2011-2020年,31种综合性农业科学类核心期刊共发表了217篇被引频次超过100次的高被引论文。其中,《中国农业科学》发表的高被引论文数量最多,期刊影响力最大。各大学学报、各省农业科学和农业学报发表的高被引论文作者所属机构多数为期刊主办单位,或与期刊主办单位处于同一行政区域的单位;在综合性农业科学期刊中,农学、园艺和植物保护方向的高被引论文数量较多。基于此,提出综合性农业科学期刊编辑在选题策划和组稿时,可根据以上特征调整工作重心,旨在助力高影响力论文的产出和期刊影响力的提升。 相似文献
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文章从国际视角出发,确定出32篇对20世纪后半期的图书情报科学学术交流有相当影响力的高被引论文,并对其进行了分析,讨论了它们在期刊中的分布、主题分布及其作者特点,并将其与同一时间段的其他图书情报学论文进行比较,最后得出结论. 相似文献
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通过对CSSCI中宗教学领域论文引用图书的情况进行统计与分析,以被引频次为依据排序,选取了在宗教学领域最具学术影响力的100家大陆出版社,并对其进行分类分析。另外,还对我国港澳台地区出版社及国外出版社之于大陆宗教学研究的学术影响力做了概要分析与评价,以作为分析大陆出版社学术影响力现状的参照。 相似文献
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本文主要对诺贝尔物理学奖得主发表的论文及其载体的语种与国家进行分析,研究在科学中心转移过程中科技交流语言的变化情况.运用时间序列的方法、以SCI数据库收录的论文为科研产出的主要指标,统计特定时间段内各个获奖国家的科学家人数、科学家所发表的论文总数及论文语言的分布,并对不同国家的科学家发表在不同国家期刊上的论文数进行比较分析.结果显示:①德国和英国获得诺贝尔物理学奖的科学家人数最多,德国的获奖人数呈下降趋势,美国则相反;②各国科学家发表论文的语言分布以德语和英语为主,德语的使用量逐渐减少,英语则逐渐增多;③各国获奖科学家所发表论文的载体主要是本国期刊和美国期刊. 相似文献
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自存档文章引用优势案例分析研究 总被引：2，自引：1，他引：1
通过对自存档文章典型案例的引用情况进行分析研究,得出自存档文章存在引用优势的结论,并进一步对自存档文章引用优势的成因进行了分析,发现除了开放获取模式之外,先见优势、质量歧视、质量优势等因素都对自存档文章的引用优势做出了贡献。为了扩大研究影响和提高被引率,建议科学家应该积极将文章自存档。 相似文献
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《Journal of Informetrics》2014,8(4):912-916
This paper examined the citation impact of Chinese- and English-language articles in Chinese-English bilingual journals indexed by Scopus and Web of Science (WoS). Two findings were obtained from comparative analysis: (1) Chinese-language articles were not biased in citations compared with English-language articles, since they received a large number of citations from Chinese scientists; (2) a Chinese-language community was found in Scopus, in which Chinese-language articles mainly received citations from Chinese-language articles, but it was not found in WoS whose coverage of Chinese-language articles is only one-tenth of Scopus. The findings suggest some implications for academic evaluation of journals including Chinese-language articles in Scopus and WoS. 相似文献
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Because of the variations in citation behavior across research fields, appropriate standardization must be applied as part of any bibliometric analysis of the productivity of individual scientists and research organizations. Such standardization involves scaling by some factor that characterizes the distribution of the citations of articles from the same year and subject category. In this work we conduct an analysis of the sensitivity of researchers’ productivity rankings to the scaling factor chosen to standardize their citations. To do this we first prepare the productivity rankings for all researchers (more than 30,000) operating in the hard sciences in Italy, over the period 2004–2008. We then measure the shifts in rankings caused by adopting scaling factors other than the particular factor that seems more effective for comparing the impact of publications in different fields: the citation average of the distribution of cited-only publications. 相似文献
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Multidisciplinary cooperation is now common in research since social issues inevitably involve multiple disciplines. In research articles, reference information, especially citation content, is an important representation of communication among different disciplines. Analyzing the distribution characteristics of references from different disciplines in research articles is basic to detecting the sources of referred information and identifying contributions of different disciplines. This work takes articles in PLoS as the data and characterizes the references from different disciplines based on Citation Content Analysis (CCA). First, we download 210,334 full-text articles from PLoS and collect the information of the in-text citations. Then, we identify the discipline of each reference in these academic articles. To characterize the distribution of these references, we analyze three characteristics, namely, the number of citations, the average cited intensity and the average citation length. Finally, we conclude that the distributions of references from different disciplines are significantly different. Although most references come from Natural Science, Humanities and Social Sciences play important roles in the Introduction and Background sections of the articles. Basic disciplines, such as Mathematics, mainly provide research methods in the articles in PLoS. Citations mentioned in the Results and Discussion sections of articles are mainly in-discipline citations, such as citations from Nursing and Medicine in PLoS. 相似文献
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《Journal of Informetrics》2014,8(4):824-839
The citations to a set of academic articles are typically unevenly shared, with many articles attracting few citations and few attracting many. It is important to know more precisely how citations are distributed in order to help statistical analyses of citations, especially for sets of articles from a single discipline and a small range of years, as normally used for research evaluation. This article fits discrete versions of the power law, the lognormal distribution and the hooked power law to 20 different Scopus categories, using citations to articles published in 2004 and ignoring uncited articles. The results show that, despite its popularity, the power law is not a suitable model for collections of articles from a single subject and year, even for the purpose of estimating the slope of the tail of the citation data. Both the hooked power law and the lognormal distributions fit best for some subjects but neither is a universal optimal choice and parameter estimates for both seem to be unreliable. Hence only the hooked power law and discrete lognormal distributions should be considered for subject-and-year-based citation analysis in future and parameter estimates should always be interpreted cautiously. 相似文献
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《Journal of Informetrics》2022,16(1):101252
This study examines how the readability of scientific discourses changes over time and to what extent readability can explain scientific impact in terms of citation counts. The basis are representative datasets of 135,502 abstracts from academic research papers pertaining to twelve technologies of different maturity. Using three different measures of readability, it is found that the language of the abstracts has become more complex over time. Across all technologies, less easily readable texts are more likely to receive at least one citation, while the effects are most pronounced for comparatively immature research streams. Among the more mature or larger discourses, the abstracts of the top 10% and 1% of the most often cited articles are significantly less readable. It remains open to what extent readability actually influences future citations and how much of the relationship is causal. If readability indeed drives citations, the results imply that scientists have an incentive to (artificially) reduce the readability of their abstracts in order to signal quality and competence to readers—both to get noticed at all and to attract more citations. This may mean a prisoner dilemma in academic (abstract) writing, where authors intentionally but unnecessarily complicate the way in which they communicate their work. 相似文献
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以《图书情报知识》1998-2004年间发表的1087篇论文为研究对象,采用文献计量方法,分别对该刊载文量、引文量、引文语种、引用期刊、论文发表时滞等进行了统计分析,探讨了该刊的特色,同时指出应进一步提高引文数量和高质量基金论文比例,加强学科间的交叉与渗透,不断拓展发展空间. 相似文献
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《The Journal of Academic Librarianship》2023,49(4):102734
This research provides insight into the complex relationship between open access, funding, and citation advantage. It presents an analysis of research articles and their citations in the Scopus database across 40 subject categories. The sample includes 12 categories from Health Sciences, 7 from Life Sciences, 10 from Physical Sciences & Engineering, and 11 from Social Sciences & Humanities. Specifically, the analysis focuses on articles published in 2016 and the citations they received from 2016 to 2020. Our findings show that open access articles published in hybrid journals receive considerably more citations than those published in gold open access journals. Articles under the hybrid gold modality are cited on average twice as much as those in the gold modality, regardless of funding. Furthermore, we found that funded articles generally obtain 50 % more citations than unfunded ones within the same publication modality. Open access repositories significantly increase citations, particularly for articles without funding. Thus, articles in open access repositories receive 50 % more citations than paywalled ones. 相似文献
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Many journals post accepted articles online before they are formally published in an issue. Early citation impact evidence for these articles could be helpful for timely research evaluation and to identify potentially important articles that quickly attract many citations. This article investigates whether Microsoft Academic can help with this task. For over 65,000 Scopus in-press articles from 2016 and 2017 across 26 fields, Microsoft Academic found 2–5 times as many citations as Scopus, depending on year and field. From manual checks of 1122 Microsoft Academic citations not found in Scopus, Microsoft Academic’s citation indexing was faster but not much wider than Scopus for journals. It achieved this by associating citations to preprints with their subsequent in-press versions and by extracting citations from in-press articles. In some fields its coverage of scholarly digital libraries, such as arXiv.org, was also an advantage. Thus, Microsoft Academic seems to be a more comprehensive automatic source of citation counts for in-press articles than Scopus. 相似文献
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《Journal of Informetrics》2014,8(4):863-872
Delayed recognition is a concept applied to articles that receive very few to no citations for a certain period of time following publication, before becoming actively cited. To determine whether such a time spent in relative obscurity had an effect on subsequent citation patterns, we selected articles that received no citations before the passage of ten full years since publication, investigated the subsequent yearly citations received over a period of 37 years and compared them with the citations received by a group of papers without such a latency period. Our study finds that papers with delayed recognition do not exhibit the typical early peak, then slow decline in citations, but that the vast majority enter decline immediately after their first – and often only – citation. Middling papers’ citations remain stable over their lifetime, whereas the more highly cited papers, some of which fall into the “sleeping beauty” subtype, show non-stop growth in citations received. Finally, papers published in different disciplines exhibit similar behavior and did not differ significantly. 相似文献